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Finding the Fourth Proportional to 124,396.94, 171,661.30 and 70,674.50

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Solution

The fourth proportional to 124,396.94, 171,661.30 and 70,674.50 is: 97,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,396.94 : 171,661.30 = 70,674.50 : x
  2. Step 2: Convert to fraction form
    124,396.94/171,661.30 = 70,674.50/x
  3. Step 3: Cross multiply
    124,396.94x = 171,661.30 × 70,674.50
  4. Step 4: Simplify right side
    124,396.94x = 12,132,076,546.85
  5. Step 5: Solve for x
    x = 12,132,076,546.85/124,396.94
  6. Step 6: Final answer
    x = 97,527.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.